467 lines
11 KiB
V
467 lines
11 KiB
V
module compiler
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import os
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#flag windows -l shell32
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// RegOpenKeyExA etc
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#flag windows -l advapi32
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struct MsvcResult {
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full_cl_exe_path string
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exe_path string
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um_lib_path string
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ucrt_lib_path string
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vs_lib_path string
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um_include_path string
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ucrt_include_path string
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vs_include_path string
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shared_include_path string
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}
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// Mimics a HKEY
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type RegKey voidptr
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// Taken from the windows SDK
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const (
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HKEY_LOCAL_MACHINE = RegKey(0x80000002)
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KEY_QUERY_VALUE = (0x0001)
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KEY_WOW64_32KEY = (0x0200)
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KEY_ENUMERATE_SUB_KEYS = (0x0008)
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)
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// Given a root key look for one of the subkeys in 'versions' and get the path
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fn find_windows_kit_internal(key RegKey, versions []string) ?string {
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$if windows {
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for version in versions {
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required_bytes := 0 // TODO mut
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result := C.RegQueryValueExW(key, version.to_wide(), 0, 0, 0, &required_bytes)
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length := required_bytes / 2
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if result != 0 {
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continue
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}
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alloc_length := (required_bytes + 2)
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mut value := &u16(malloc(alloc_length))
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if isnil(value) {
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continue
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}
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result2 := C.RegQueryValueExW(key, version.to_wide(), 0, 0, value, &alloc_length)
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if result2 != 0 {
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continue
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}
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// We might need to manually null terminate this thing
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// So just make sure that we do that
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if (value[length - 1] != u16(0)) {
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value[length] = u16(0)
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}
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return string_from_wide(value)
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}
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}
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return error('windows kit not found')
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}
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struct WindowsKit {
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um_lib_path string
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ucrt_lib_path string
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um_include_path string
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ucrt_include_path string
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shared_include_path string
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}
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// Try and find the root key for installed windows kits
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fn find_windows_kit_root() ?WindowsKit {
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$if windows {
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root_key := RegKey(0)
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rc := C.RegOpenKeyExA(
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HKEY_LOCAL_MACHINE, 'SOFTWARE\\Microsoft\\Windows Kits\\Installed Roots', 0, KEY_QUERY_VALUE | KEY_WOW64_32KEY | KEY_ENUMERATE_SUB_KEYS, &root_key)
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defer {C.RegCloseKey(root_key)}
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if rc != 0 {
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return error('Unable to open root key')
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}
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// Try and find win10 kit
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kit_root := find_windows_kit_internal(root_key, ['KitsRoot10', 'KitsRoot81']) or {
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return error('Unable to find a windows kit')
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}
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kit_lib := kit_root + 'Lib'
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// println(kit_lib)
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files := os.ls(kit_lib)
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mut highest_path := ''
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mut highest_int := 0
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for f in files {
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no_dot := f.replace('.', '')
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v_int := no_dot.int()
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if v_int > highest_int {
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highest_int = v_int
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highest_path = f
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}
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}
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kit_lib_highest := kit_lib + '\\$highest_path'
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kit_include_highest := kit_lib_highest.replace('Lib', 'Include')
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// println('$kit_lib_highest $kit_include_highest')
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return WindowsKit {
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um_lib_path: kit_lib_highest + '\\um\\x64'
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ucrt_lib_path: kit_lib_highest + '\\ucrt\\x64'
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um_include_path: kit_include_highest + '\\um'
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ucrt_include_path: kit_include_highest + '\\ucrt'
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shared_include_path: kit_include_highest + '\\shared'
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}
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}
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return error('Host OS does not support funding a windows kit')
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}
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struct VsInstallation {
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include_path string
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lib_path string
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exe_path string
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}
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fn find_vs() ?VsInstallation {
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$if !windows {
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return error('Host OS does not support finding a Vs installation')
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}
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// Emily:
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// VSWhere is guaranteed to be installed at this location now
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// If its not there then end user needs to update their visual studio
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// installation!
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res := os.exec('""%ProgramFiles(x86)%\\Microsoft Visual Studio\\Installer\\vswhere.exe" -latest -prerelease -products * -requires Microsoft.VisualStudio.Component.VC.Tools.x86.x64 -property installationPath"') or {
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return error(err)
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}
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// println('res: "$res"')
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version := os.read_file('$res.output\\VC\\Auxiliary\\Build\\Microsoft.VCToolsVersion.default.txt') or {
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println('Unable to find msvc version')
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return error('Unable to find vs installation')
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}
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// println('version: $version')
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v := if version.ends_with('\n') {
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version.left(version.len - 2)
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} else {
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version
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}
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lib_path := '$res.output\\VC\\Tools\\MSVC\\$v\\lib\\x64'
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include_path := '$res.output\\VC\\Tools\\MSVC\\$v\\include'
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if os.file_exists('$lib_path\\vcruntime.lib') {
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p := '$res.output\\VC\\Tools\\MSVC\\$v\\bin\\Hostx64\\x64'
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// println('$lib_path $include_path')
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return VsInstallation{
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exe_path: p
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lib_path: lib_path
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include_path: include_path
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}
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}
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println('Unable to find vs installation (attempted to use lib path "$lib_path")')
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return error('Unable to find vs exe folder')
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}
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fn find_msvc() ?MsvcResult {
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$if windows {
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wk := find_windows_kit_root() or {
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return error('Unable to find windows sdk')
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}
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vs := find_vs() or {
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return error('Unable to find visual studio')
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}
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return MsvcResult {
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full_cl_exe_path: os.realpath( vs.exe_path + os.path_separator + 'cl.exe' )
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exe_path: vs.exe_path,
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um_lib_path: wk.um_lib_path,
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ucrt_lib_path: wk.ucrt_lib_path,
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vs_lib_path: vs.lib_path,
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um_include_path: wk.um_include_path,
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ucrt_include_path: wk.ucrt_include_path,
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vs_include_path: vs.include_path,
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shared_include_path: wk.shared_include_path,
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}
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}
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$else {
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verror('Cannot find msvc on this OS')
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return error('msvc not found')
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}
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}
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pub fn (v mut V) cc_msvc() {
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r := find_msvc() or {
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// TODO: code reuse
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if !v.pref.is_keep_c && v.out_name_c != 'v.c' && v.out_name_c != 'v_macos.c' {
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os.rm(v.out_name_c)
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}
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verror('Cannot find MSVC on this OS')
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return
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}
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out_name_obj := os.realpath( v.out_name_c + '.obj' )
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// Default arguments
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// volatile:ms enables atomic volatile (gcc _Atomic)
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// -w: no warnings
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// 2 unicode defines
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// /Fo sets the object file name - needed so we can clean up after ourselves properly
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mut a := ['-w', '/we4013', '/volatile:ms', '/Fo"$out_name_obj"']
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if v.pref.is_prod {
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a << '/O2'
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a << '/MD'
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a << '/Zi'
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a << '/DNDEBUG'
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} else {
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a << '/Zi'
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a << '/MDd'
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}
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if v.pref.is_so {
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if !v.out_name.ends_with('.dll') {
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v.out_name = v.out_name + '.dll'
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}
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// Build dll
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a << '/LD'
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} else if !v.out_name.ends_with('.exe') {
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v.out_name = v.out_name + '.exe'
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}
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v.out_name = os.realpath( v.out_name )
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//alibs := []string // builtin.o os.o http.o etc
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if v.pref.build_mode == .build_module {
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}
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else if v.pref.build_mode == .default_mode {
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/*
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b := os.realpath( '$v_modules_path/vlib/builtin.obj' )
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alibs << '"$b"'
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if !os.file_exists(b) {
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println('`builtin.obj` not found')
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exit(1)
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}
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for imp in v.table.imports {
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if imp == 'webview' {
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continue
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}
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alibs << '"' + os.realpath( '$v_modules_path/vlib/${imp}.obj' ) + '"'
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}
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*/
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}
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if v.pref.sanitize {
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println('Sanitize not supported on msvc.')
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}
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// The C file we are compiling
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//a << '"$TmpPath/$v.out_name_c"'
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a << '"' + os.realpath( v.out_name_c ) + '"'
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// Emily:
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// Not all of these are needed (but the compiler should discard them if they are not used)
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// these are the defaults used by msbuild and visual studio
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mut real_libs := [
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'kernel32.lib',
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'user32.lib',
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'gdi32.lib',
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'winspool.lib',
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'comdlg32.lib',
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'advapi32.lib',
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'shell32.lib',
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'ole32.lib',
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'oleaut32.lib',
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'uuid.lib',
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'odbc32.lib',
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'odbccp32.lib'
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]
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sflags := v.get_os_cflags().msvc_string_flags()
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real_libs << sflags.real_libs
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inc_paths := sflags.inc_paths
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lib_paths := sflags.lib_paths
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other_flags := sflags.other_flags
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// Include the base paths
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a << '-I "$r.ucrt_include_path"'
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a << '-I "$r.vs_include_path"'
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a << '-I "$r.um_include_path"'
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a << '-I "$r.shared_include_path"'
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a << inc_paths
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a << other_flags
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// Libs are passed to cl.exe which passes them to the linker
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a << real_libs.join(' ')
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a << '/link'
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a << '/NOLOGO'
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a << '/OUT:"$v.out_name"'
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a << '/LIBPATH:"$r.ucrt_lib_path"'
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a << '/LIBPATH:"$r.um_lib_path"'
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a << '/LIBPATH:"$r.vs_lib_path"'
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a << '/DEBUG:FULL' // required for prod builds to generate PDB
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if v.pref.is_prod {
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a << '/INCREMENTAL:NO' // Disable incremental linking
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a << '/OPT:REF'
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a << '/OPT:ICF'
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}
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a << lib_paths
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args := a.join(' ')
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cmd := '""$r.full_cl_exe_path" $args"'
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// It is hard to see it at first, but the quotes above ARE balanced :-| ...
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// Also the double quotes at the start ARE needed.
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if v.pref.show_c_cmd || v.pref.is_verbose {
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println('\n========== cl cmd line:')
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println(cmd)
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println('==========\n')
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}
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// println('$cmd')
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res := os.exec(cmd) or {
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println(err)
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verror('msvc error')
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return
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}
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if res.exit_code != 0 {
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verror(res.output)
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}
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// println(res)
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// println('C OUTPUT:')
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if !v.pref.is_keep_c && v.out_name_c != 'v.c' && v.out_name_c != 'v_macos.c' {
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os.rm(v.out_name_c)
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}
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// Always remove the object file - it is completely unnecessary
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os.rm(out_name_obj)
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}
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fn build_thirdparty_obj_file_with_msvc(path string, moduleflags []CFlag) {
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msvc := find_msvc() or {
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println('Could not find visual studio')
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return
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}
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// msvc expects .obj not .o
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mut obj_path := '${path}bj'
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obj_path = os.realpath(obj_path)
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if os.file_exists(obj_path) {
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println('$obj_path already build.')
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return
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}
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println('$obj_path not found, building it (with msvc)...')
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parent := os.dir(obj_path)
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files := os.ls(parent)
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mut cfiles := ''
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for file in files {
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if file.ends_with('.c') {
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cfiles += '"' + os.realpath( parent + os.path_separator + file ) + '" '
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}
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}
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include_string := '-I "$msvc.ucrt_include_path" -I "$msvc.vs_include_path" -I "$msvc.um_include_path" -I "$msvc.shared_include_path"'
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//println('cfiles: $cfiles')
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btarget := moduleflags.c_options_before_target_msvc()
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atarget := moduleflags.c_options_after_target_msvc()
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cmd := '""$msvc.full_cl_exe_path" /volatile:ms /Zi /DNDEBUG $include_string /c $btarget $cfiles $atarget /Fo"$obj_path""'
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//NB: the quotes above ARE balanced.
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println('thirdparty cmd line: $cmd')
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res := os.exec(cmd) or {
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verror(err)
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return
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}
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println(res.output)
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}
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struct MsvcStringFlags {
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mut:
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real_libs []string
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inc_paths []string
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lib_paths []string
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other_flags []string
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}
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fn (cflags []CFlag) msvc_string_flags() MsvcStringFlags {
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mut real_libs := []string
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mut inc_paths := []string
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mut lib_paths := []string
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mut other_flags := []string
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for flag in cflags {
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//println('fl: $flag.name | flag arg: $flag.value')
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// We need to see if the flag contains -l
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// -l isnt recognised and these libs will be passed straight to the linker
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// by the compiler
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if flag.name == '-l' {
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if flag.value.ends_with('.dll') {
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verror('MSVC cannot link against a dll (`#flag -l $flag.value`)')
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}
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// MSVC has no method of linking against a .dll
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// TODO: we should look for .defs aswell
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lib_lib := flag.value + '.lib'
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real_libs << lib_lib
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}
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else if flag.name == '-I' {
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inc_paths << flag.format()
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}
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else if flag.name == '-L' {
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lib_paths << flag.value
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lib_paths << flag.value + os.path_separator + 'msvc'
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// The above allows putting msvc specific .lib files in a subfolder msvc/ ,
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// where gcc will NOT find them, but cl will do...
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// NB: gcc is smart enough to not need .lib files at all in most cases, the .dll is enough.
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// When both a msvc .lib file and .dll file are present in the same folder,
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// as for example for glfw3, compilation with gcc would fail.
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}
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else if flag.value.ends_with('.o') {
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// msvc expects .obj not .o
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other_flags << '"${flag.value}bj"'
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}
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else {
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other_flags << flag.value
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}
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}
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mut lpaths := []string
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for l in lib_paths {
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lpaths << '/LIBPATH:"' + os.realpath(l) + '"'
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}
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return MsvcStringFlags{ real_libs, inc_paths, lpaths, other_flags }
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}
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